For hard "Ourdoor inserts" there are other manufacturers certainly more stable constructions and materials, but as a simple hot shoe extension with additional handle for spontaneous and stable video shooting without a tripod is good for this angle rail all.
Despite the almost full-plastic design, there is no rattling or bending annoying ... my additional equipment (microphone or head light) keep very well in the hot shoe and the loop helps to calm and soft carrying out the camera. The weight distribution is, thanks to the large adjustment range of the screw, very well adjustable to any camera and situation.
That's all I wanted and that's what I get ... Perfect is indeed different, but that's enough for my purposes.